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Tires remain a critical element to any vehicle, but electric cars have their own challenges. Without an engine humming along, cabin noise often increases and the instant torque from electric motors is often far too much for typical tires to handle.

Goodyear thinks it has a solution to better meet electric cars’ needs and introduced the “EfficientGrip Performance prototype tire with Electric Drive Technology” at the 2018 Geneva Motor Show.

The tire makes a lot of promises. Goodyear said the tread’s smaller sipes allows more rubber to contact the road, which handles the large amounts of torque better. The smaller channels don’t compromise wet-weather performance, either. The tread design should also quiet down exterior and interior road noise.

Yet another challenge for electric-car tires is extra weight. Electric cars’ battery packs put more strain on tires, and Goodyear said tires often wear out 30 percent quicker due to the extra weight onboard. The EfficientGrip Performance tires will support additional vehicle weight.

Finally, the tires have been tuned for ultra-low rolling resistance, which will equate to better range. Goodyear also said the sidewall has been designed to reduce aerodynamic drag and the profile yields less rotating mass. Translation: less energy consumed as the tires work.

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10 Comments

Yes tires for EV cars is very difficult to make. The Fuel Max tires Goodyear made were better than most but still faced many issue.

Weight, grip, higher pressure hard rubber for less rolling résistance yet grip are all issues. Yes tires noise is a big problem as they have little to mask the noise like in a normal car.

Compounding is really changing things. Goodyear on many tires are now targeting the tread with up to 3 compounds to improve wear and grip. They can make the rubber harder and more silica to provide more bite but not add more rolling resistance.

It will be interesting to see what they have fully done here. I have not seen the details on this one yet.

Automakers also are watching as better tires can really benefit them in many ways.

It is and much of the same technology is used in other tires too. But the higher pressure and there is still a little compromise for the lower rolling resistance.

The divide between types of tires is getting narrower but they are still often engineered more for the application.

Also sizes are in play as many MFG limit the width of the tire as tires can be a major hindrance to aerodynamics. Even on Indy cars most of the drag is the tires. This is why they try to hide them behind flairs.

You probably think the Wright Brothers left us short because they did not use a J57 jet on their 1903 flyer too?

The truth is even the batteries in al, electric cars are inadequate. None can charge as fast as a fill of gas but yet owners compromise to make it fit their life style. This is why many have not bought into electric cars because they are not willing to compromise.

The reality is all the things in this world are all in a state of development as time goes on it keeps improving and gets better. The term is refinement or even discovery of new and better technology.
There will always be compromise.

John life itself is a compromise get use to it.

if you are so smart why did you not take the lead here on this if you have it all figured out?

I have a 2017 Bolt the tires I have that came with the car from factory, the same tire is on my 2018 Volt, their is no problem with the stock tires, ride is perfect, handle is perfect, I see no problem with what Chevy put on the cars, some people just don’t get it, Some people just want to wine about anything.